spirv: add SpvCapabilityImageReadWriteLodAMD

New SPIR-V capability for SPV_AMD_shader_image_load_store_lod.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

src/compiler/shader_info.h

@@ -81,6 +81,7 @@ struct spirv_supported_capabilities {
    bool amd_gcn_shader;
    bool amd_shader_ballot;
    bool amd_trinary_minmax;
+   bool amd_image_read_write_lod;
 };
 
 typedef struct shader_info {

src/compiler/spirv/spirv_to_nir.c

@@ -4048,6 +4048,10 @@ vtn_handle_preamble_instruction(struct vtn_builder *b, SpvOp opcode,
          spv_check_supported(vk_memory_model_device_scope, cap);
          break;
 
+      case SpvCapabilityImageReadWriteLodAMD:
+         spv_check_supported(amd_image_read_write_lod, cap);
+         break;
+
       default:
          vtn_fail("Unhandled capability: %s (%u)",
                   spirv_capability_to_string(cap), cap);